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<html lang="zh-CN">
    <head>
        <meta charset="UTF-8" />
        <title>09_CSS代码不区分大小写</title>
        <style>
            /* div {
                color: aquamarine;
            } */

            DIV {
                color: #6dad88
            }
        </style>
    </head>
    <body>
        <div>
            昨天看了白敬亭去了野球帝排了一个good ball
        </div>
    </body>
</html>